Home / 105,990.48-146,265.69-58,243.26

Finding the Fourth Proportional to 105,990.48, 146,265.69 and 58,243.26

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Solution

The fourth proportional to 105,990.48, 146,265.69 and 58,243.26 is: 80,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,990.48 : 146,265.69 = 58,243.26 : x
  2. Step 2: Convert to fraction form
    105,990.48/146,265.69 = 58,243.26/x
  3. Step 3: Cross multiply
    105,990.48x = 146,265.69 × 58,243.26
  4. Step 4: Simplify right side
    105,990.48x = 8,518,990,611.75
  5. Step 5: Solve for x
    x = 8,518,990,611.75/105,990.48
  6. Step 6: Final answer
    x = 80,375.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.